llvm-project/llvm/test/CodeGen/X86/membarrier.ll
Matthias Braun 6b898beb8e X86: Do not use llc -march in tests.
`llc -march` is problematic because it only switches the target
architecture, but leaves the operating system unchanged. This
occasionally leads to indeterministic tests because the OS from
LLVM_DEFAULT_TARGET_TRIPLE is used.

However we can simply always use `llc -mtriple` instead. This changes
all the tests to do this to avoid people using -march when they copy and
paste parts of tests.

See also the discussion in https://reviews.llvm.org/D35287

llvm-svn: 309774
2017-08-02 00:28:10 +00:00

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236 B
LLVM

; RUN: llc < %s -mtriple=x86_64-- -mattr=-sse -O0
; PR9675
define i32 @t() {
entry:
%i = alloca i32, align 4
store i32 1, i32* %i, align 4
fence seq_cst
%0 = atomicrmw sub i32* %i, i32 1 monotonic
fence seq_cst
ret i32 0
}